Tool for removing or inserting piston packing-rings or the like.



, J. KOMANCSEK.

TOOL FOR REMOVING OR INSERTING PISTON PACKING RINGS OR THE LIKE.

APPLICATION FILED Nov. 8. 1912.

1,079,564, Patented Nov. 25, 1913.

WWW own: (Jag/gutted, @{W a JOSEPH KOMANCSEK, OF NEW YORK, N. Y.

,IOOL FOR REMOVING OR INSERTING.PISTON PACKING-RINGS OR THE LIKE.

Application filed November 8, 1912.

To all whom it may concern:

Be it known that I, Josnrn KoMANcsEK, citizen of the United States of America, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Tools for Removing or Inserting Piston Packing-Rings or the like, of which the following is a specification.

The tensile force of split metal packing rings is so great that it is very diiiicult to expand the rings in order to allow of their being placed on the pistons or removed therefrom.

The present invention has for its object to provide a tool whereby such split metal packing rings can be readily and easily expanded.

To make my invention more clear the same is illustrated in the accompanying drawing in which similar reference characters denote corresponding parts and in which a Figure 1 is a side elevation of the instrument or tool showing the packing ring extended; Fig. 2 an end elevation thereof; Fig. 3 is a section through the split packing ring on line 3-3 of Fig. 1; and Fig. 4 is a similar view as Fig. 1 showing the nippers in em gagement with the packing ring prior to its expansion.

In the drawing a denotes the rigid piece or plate which has a concaved upper edge a and to its upper corners the ends of a circularly curved band I) are secured. This band projects beyond the curved edge a of the plate and forms with said edge a complete circle. The attachment of the band I) to the plate a: may be made by pins 6 or other suitable means permitting the said band to be easily removable and to be re placed bya band of a different size in accordance with the size of the piston for which the papking ring is to be used. At the lower portion of the plate a series of key-hole shaped slots a is provided which notches serve for the passa e of pins 0 whereby two jaws are remova ly or adjustahly attached to the late a. Each of these jaws d, d is made 0% an angular piece, the downwardly projecting part of which serves as a grasp ofhandle, while the upper art serves as the bit or the o crating end 0 the tool. The two jaws which are of uniform construction are adapted to be so attached Specification of Letters Patent.

Patented Nov. 25, 1913. Serial No. 730,243.

to the plate a that their handles cross and are arranged at opposite sides of the plate a. Each of the pins 0 is formed at one end with an oblong head 0' capable, when extending in longitudinal direction of the key-hole notch, of being freely passed therethrough and when turned at a right angle to the notch of fastening the jaw to the plate a. The upper parts or bits d of the jaws are adapted to project somewhat beyond the curved edge a of the plate a into the circular space 6 formed by the band 6 and are sharpened or pointed so as to easily enter the narrow space e separating the ends of the split packing ring 6. The two jaws are thus arranged in two parallel planes which are separated from one another by a space equal to the thickness of the plate a. Owing to this arrangement the bits cl of the tool will engage the space separating the ends of the pacln'ng ring at two opposite points whereby the expansion of the ring will be greatly facilitated (Fig. 4).

The jaws may be arranged nearer to or farther from one anothen in the plate a according as the cut in the pacln'ng ring is arranged.

When the packing ring e is expanded by the hits a? of the jaws d it will bear against the inner circumference of the supporting band 6 and thereby prevented from burstand jumping oil the ends of the bits What I claim and desire to secure by Letters Patent is:

1. A tool comprising a rigid member, two intersecting jaws pivotally secured in said member and a circularly curved member. the bits of said jaws projecting into the space surrounded by said circularly curved member having its ends secured to said member.

2. A tool comprising a rigid member, two intersecting jaws pivotally secured in said member and a circularly curved member re inovablr dia to the fir named membi the dlm ct' e wo'jaws ghtly projecting into the space sur ounded by said ircularly curved member.

3. A tool comprising a rigid member, two intersecting jaws adjustably and pivotally secured in said member and a circularly curved member reinoviflisifi; secu d to the 4. A (.001 conmrisin a piaie having a 0011 Cave edge, a circularly curved member sesured to said plaie and pwjecijng beyond saldci'mcave (3:: get? iurm mth the latter a iiwo inters -cting jaws sanmletc circle and.

and arranged any secured to said 1m at opposite sides of said piate, the bits of: 10 said jaws projecting into t-Iw space surrmmded by said member. In testimony whgmof I ,affixsignature in presence of two witnesses.

JOSEPH KGMANCSEK. Vvitnesses ELIAS V. LEVY, MAX I). ORDMANN. 

